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{
    "id": 21824,
    "url": "https://patchwork.libcamera.org/api/patches/21824/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/21824/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/projects/1/?format=api",
        "name": "libcamera",
        "link_name": "libcamera",
        "list_id": "libcamera_core",
        "list_email": "libcamera-devel@lists.libcamera.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20241106201721.1624461-3-mzamazal@redhat.com>",
    "date": "2024-11-06T20:17:20",
    "name": "[v6,2/3] libcamera: simple: Track requests in conversionQueue_",
    "commit_ref": "2cc52d68352b9729c8c285805bcbe8313e505ddb",
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "28fe68232aa92325bf4a352ca709e4ce3bdf558e",
    "submitter": {
        "id": 177,
        "url": "https://patchwork.libcamera.org/api/people/177/?format=api",
        "name": "Milan Zamazal",
        "email": "mzamazal@redhat.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/21824/mbox/",
    "series": [
        {
            "id": 4774,
            "url": "https://patchwork.libcamera.org/api/series/4774/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4774",
            "date": "2024-11-06T20:17:18",
            "name": "Clean up pending requests on stop in software ISP",
            "version": 6,
            "mbox": "https://patchwork.libcamera.org/series/4774/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/21824/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/21824/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
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        "From": "Milan Zamazal <mzamazal@redhat.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Milan Zamazal <mzamazal@redhat.com>, robert.mader@posteo.de,\n\tkieran.bingham@ideasonboard.com, laurent.pinchart@ideasonboard.com,\n\thdegoede@redhat.com",
        "Subject": "[PATCH v6 2/3] libcamera: simple: Track requests in conversionQueue_",
        "Date": "Wed,  6 Nov 2024 21:17:20 +0100",
        "Message-ID": "<20241106201721.1624461-3-mzamazal@redhat.com>",
        "In-Reply-To": "<20241106201721.1624461-1-mzamazal@redhat.com>",
        "References": "<20241106201721.1624461-1-mzamazal@redhat.com>",
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        "List-Id": "<libcamera-devel.lists.libcamera.org>",
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        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Simple pipeline retrieves the requests to complete from the\nconversionQueue_.  This patch stores the requests in conversionQueue_\nexplicitly.  This explicit tracking is supposed to be preferred to\nimplicit retrieval and it simplifies the completion code a bit here and\nin the followup patch that adds request cleanup on stop.\n\nThe change as implemented assumes that all the buffers in each of the\nconversionQueue_ elements point to the same request, the one specified.\n\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\nTested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>\nReviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>\nReviewed-by: Hans de Goede <hdegoede@redhat.com>\n---\n src/libcamera/pipeline/simple/simple.cpp | 26 ++++++++++++------------\n 1 file changed, 13 insertions(+), 13 deletions(-)",
    "diff": "diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp\nindex 67f583b8a..13c0a1891 100644\n--- a/src/libcamera/pipeline/simple/simple.cpp\n+++ b/src/libcamera/pipeline/simple/simple.cpp\n@@ -282,7 +282,11 @@ public:\n \tstd::unique_ptr<DelayedControls> delayedCtrls_;\n \n \tstd::vector<std::unique_ptr<FrameBuffer>> conversionBuffers_;\n-\tstd::queue<std::map<const Stream *, FrameBuffer *>> conversionQueue_;\n+\tstruct RequestOutputs {\n+\t\tRequest *request;\n+\t\tstd::map<const Stream *, FrameBuffer *> outputs;\n+\t};\n+\tstd::queue<RequestOutputs> conversionQueue_;\n \tbool useConversion_;\n \n \tstd::unique_ptr<Converter> converter_;\n@@ -808,16 +812,12 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)\n \t\tif (conversionQueue_.empty())\n \t\t\treturn;\n \n-\t\tRequest *request = nullptr;\n-\t\tfor (auto &item : conversionQueue_.front()) {\n-\t\t\tFrameBuffer *outputBuffer = item.second;\n-\t\t\trequest = outputBuffer->request();\n-\t\t\tpipe->completeBuffer(request, outputBuffer);\n-\t\t}\n+\t\tconst RequestOutputs &outputs = conversionQueue_.front();\n+\t\tfor (auto &[stream, buf] : outputs.outputs)\n+\t\t\tpipe->completeBuffer(outputs.request, buf);\n+\t\tpipe->completeRequest(outputs.request);\n \t\tconversionQueue_.pop();\n \n-\t\tif (request)\n-\t\t\tpipe->completeRequest(request);\n \t\treturn;\n \t}\n \n@@ -833,7 +833,7 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)\n \n \tif (useConversion_ && !conversionQueue_.empty()) {\n \t\tconst std::map<const Stream *, FrameBuffer *> &outputs =\n-\t\t\tconversionQueue_.front();\n+\t\t\tconversionQueue_.front().outputs;\n \t\tif (!outputs.empty()) {\n \t\t\tFrameBuffer *outputBuffer = outputs.begin()->second;\n \t\t\tif (outputBuffer)\n@@ -857,7 +857,7 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)\n \t\t}\n \n \t\tif (converter_)\n-\t\t\tconverter_->queueBuffers(buffer, conversionQueue_.front());\n+\t\t\tconverter_->queueBuffers(buffer, conversionQueue_.front().outputs);\n \t\telse\n \t\t\t/*\n \t\t\t * request->sequence() cannot be retrieved from `buffer' inside\n@@ -865,7 +865,7 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)\n \t\t\t * already here.\n \t\t\t */\n \t\t\tswIsp_->queueBuffers(request->sequence(), buffer,\n-\t\t\t\t\t     conversionQueue_.front());\n+\t\t\t\t\t     conversionQueue_.front().outputs);\n \n \t\tconversionQueue_.pop();\n \t\treturn;\n@@ -1429,7 +1429,7 @@ int SimplePipelineHandler::queueRequestDevice(Camera *camera, Request *request)\n \t}\n \n \tif (data->useConversion_) {\n-\t\tdata->conversionQueue_.push(std::move(buffers));\n+\t\tdata->conversionQueue_.push({ request, std::move(buffers) });\n \t\tif (data->swIsp_)\n \t\t\tdata->swIsp_->queueRequest(request->sequence(), request->controls());\n \t}\n",
    "prefixes": [
        "v6",
        "2/3"
    ]
}